Servo tech manufactures microcontroller-based air leak testers with 4 x 40 lcd dot matrix display. The applications include leakage testing of plastic containers, tubes, manifold blocks, castings, engine blocks, steering systems, etc. The sequence includes pressurising the job to the fill value, taking pressure reading at fixed intervals and accepting/rejecting the component based on drop in pressure beyond permissible limits. High precision pressure transducers are used to sense the pressure. The number of containers rejected as a percentage of total containers tested is displayed. Optional accessories like conveyor, auto loaders, printer, water tank with dip facility can be offered. This system is a cost-effective solution to various quality problems. A 4 line x 40 character lcd alphanumeric display is available for display of online parameters. In case of rejection of a component, on request by the operator, the container can be dipped into water and the leakage test repeated, so that visual inspection of leakage points could be carried out.
